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US 5,780,076 AGranted
Compression apparatus
OwnerHeinz Bauer, Achim Roland Bernhardtinventors
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OwnerHeinz Bauer, Achim Roland Bernhardtinventors
Estimating the term…
A compression apparatus which is operated in association with at least two mold parts which can move relative to one another. The compression apparatus is formed of at least one compression units having a working chamber and a working element which can move in it. A gaseous medium can be provided to the working chamber under any initial pressure. During the closing motion of the parts of the mold, the working element is moved in the working chamber, such that the volume in the working chamber is reduced, and in this way, in the course of the closing motion, the gaseous medium is compressed in the working chamber. The compressed gaseous medium can then be sent to a consumer with or without intermediate storage. A compression apparatus of this type is intended for an injection molding machine in which gas pressurization is to take place in a cavity. In one embodiment, the compression apparatus integrated into the mold or into one of two mold parts, or its platens, adapter plates or the like, and in another form, it is attached to one of the mold parts. Optionally, the compression apparatus can comprise several compression stages formed by a series connection of a plurality of individual working chambers, with or without cooling of the gaseous medium as it moves between the compression stages.
Apparatus for compressing a gaseous medium comprising a pair of mold parts mounted for relative movement with respect to each other to open and close said mold parts, drive means for producing said relative movement and at least one gas compressing unit having a working element which is movable in a working chamber, said gas compressing unit being physically associated with at least one of said mold parts in a manner producing relative movement of the working element and working chamber in direct relation to the relative movement of the mold parts in a mold closing direction to define means for compressing a gaseous medium in the working chamber with the working element during closure of said mold parts, wherein said working chamber is connected to an inlet by which the gaseous medium is delivered to the working chamber and to a supply means for receiving the gaseous medium after it has been compressed in said working chamber, and wherein the supply means comprises an outlet line connected to a gaseous medium consumer.
Dependencies are inferred from the claim text.